How I Got the Latest Clue to a 30-Year-Old Puzzle at the C.I.A.
Jim Sanborn, an artist who created Kryptos, a cryptographic puzzle that has stumped enthusiasts for three decades, emailed me this month with a hint.
x
How I Got the Latest Clue to a 30-Year-Old Puzzle at the C.I.A.
Jim Sanborn, an artist who created Kryptos, a cryptographic puzzle that has stumped enthusiasts for three decades, emailed me this month with a hint.